I am getting problem when comparing date .

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my code work fine when i run on localhost, but when i upload to server it give error..

String was not recognized as a valid DateTime.

What I have tried:

{
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

    string userid = GVmydsr.DataKeys[e.RowIndex].Value.ToString();
    GridViewRow row = (GridViewRow)GVmydsr.Rows[e.RowIndex];
    Label date = (Label)row.FindControl("lblcurrentdate");

    string cdate = date.Text.ToString();
    DateTime date1 = DateTime.ParseExact(cdate, "MM/dd/yyyy 00:00:00", null);
    string dt1 = date1.ToString("MM/dd/yyyy 00:00:00");


    GVmydsr.EditIndex = -1;


    string dt2 = DateTime.Today.ToString("MM/dd/yyyy 00:00:00");

    if (dt1 == dt2)
    {
        //
    }

    else
    {
        ScriptManager.RegisterStartupScript(this, GetType(), "Success", "alert('Cannot Edit !!!.');", true);
        gvbind();
    }
}

Posted 3-Jan-18 23:27pm

ADI@345

Updated 3-Jan-18 23:32pm

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ADI@345 4-Jan-18 5:31am

I am getting date in this format offline - 01-04-2018 00:00:00
but after uploading it, get convert into - 01/04/2018 00:00:00

Richard MacCutchan 4-Jan-18 5:39am

Why are you using strings to compare dates? Use DateTime types to compare accurately.

1 solution

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Karthik_Mahalingam · Answer 1 · 2018-01-03T23:32:00

Solution 1

use DateTime.TryParseExact Method (System)[^]

Label date = (Label)row.FindControl("lblcurrentdate");
           string cdate = date.Text;
           DateTime date1 = DateTime.MinValue;
           DateTime.TryParseExact(cdate.Split(' ')[0], "MM-dd-yyyy", null, System.Globalization.DateTimeStyles.None, out date1);
           string dateDB = date1.ToString("MM-dd-yyyy");
           string day = DateTime.Today.ToString("MM-dd-yyyy");
           if (dateDB == day)
           {
               ////
           }

Quote:
I am getting date in this format offline - 01-04-2018 00:00:00
but after uploading it, get convert into - 01/04/2018 00:00:00

if your string is like "01-04-2018" then use "MM-dd-yyyy"
if "01/04/2018" then use "MM/dd/yyyy"
this will handle both the case

DateTime.TryParseExact(cdate.Split(' ')[0], new string[] { "MM-dd-yyyy", "MM/dd/yyyy" }, null, System.Globalization.DateTimeStyles.None, out date1);

Posted 3-Jan-18 23:32pm

Karthik_Mahalingam

Updated 3-Jan-18 23:40pm

v3

Comments

ADI@345 4-Jan-18 5:41am

i apply all this , but it work fine on localhost , but not on server

ADI@345 4-Jan-18 5:45am

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

string userid = GVmydsr.DataKeys[e.RowIndex].Value.ToString();
GridViewRow row = (GridViewRow)GVmydsr.Rows[e.RowIndex];
Label date = (Label)row.FindControl("lblcurrentdate");

string cdate = date.Text.ToString();
DateTime date1 = DateTime.MinValue;
DateTime.TryParseExact(cdate.Split(' ')[0], new string[] { "MM-dd-yyyy", "d/M/yyyy" }, null, System.Globalization.DateTimeStyles.None, out date1);

string dt1 = date1.ToString("d/M/yyyy 00:00:00");

GVmydsr.EditIndex = -1;

string dt2 = DateTime.Today.ToString("d/M/yyyy 00:00:00");

if (dt1 == dt2)
{

ScriptManager.RegisterStartupScript(this, GetType(), "Success", "alert('Update Successfully!!!.');", true);
gvbind();
}

else
{
ScriptManager.RegisterStartupScript(this, GetType(), "Success", "alert('Cannot Edit !!!.');", true);
gvbind();
}
}

ADI@345 4-Jan-18 5:45am

i made changes , this code works for me online..

ADI@345 4-Jan-18 5:47am

Thanks for help

Karthik_Mahalingam 4-Jan-18 6:10am

welcome